Composite ultrafine particles of nitrides, method for production and
sintered article thereof
    1.
    发明授权
    Composite ultrafine particles of nitrides, method for production and sintered article thereof 失效
    氮化物的复合超微粒子,其制造方法及其烧结体

    公开(公告)号:US5549951A

    公开(公告)日:1996-08-27

    申请号:US301879

    申请日:1994-09-07

    摘要: Ultrafine whiskery or columnar ceramic particles, a method for producing the ultrafine particles, and a sintered article obtained by sintering the ultrafine ceramic particles are disclosed. The ultrafine ceramic particles are produced by thermally melting a matrix alloy of a composition of Al--M.sup.1, wherein M.sup.1 stands for at least one metallic element selected from the group consisting of Cr, Co, and Fe, or Al--M.sup.1 --M.sup.2, wherein M.sup.2 stands for at least one metallic element selected from the group consisting of Au, Cu, Dy, Er, Ga, Ge, Gd, Hf, Ho, Lu, Mn, Mo, Nb, Nd, Ni, Pr, Re, Sb, Sc, Si, Sn, Ta, Tb, Ti, Tm, V, W, Y, Zn, or Zr, in a nitriding atmosphere containing nitrogen and causing the vaporized raw material to react with the nitrogen in the atmosphere. By this method, ultrafine composite particles or a mixture comprising ultrafine whiskery or columnar aluminum nitride particles and ultrafine particles of the metal, the intermetallic compound of the metal with aluminum, and the nitride ceramic of the metal are produced. The ultrafine particles thus obtained find extensive utility as sintering materials and dispersion materials, for example.

    摘要翻译: 公开了超细威士忌或柱状陶瓷颗粒,超细颗粒的制造方法和通过烧结超细陶瓷颗粒而获得的烧结体。 超细陶瓷颗粒是通过将Al-M1组成的基体合金热熔而制造的,其中M1代表选自Cr,Co和Fe中的至少一种金属元素或Al-M1-M2,其中 M2代表选自Au,Cu,Dy,Er,Ga,Ge,Gd,Hf,Ho,Lu,Mn,Mo,Nb,Nd,Ni,Pr,Re,Sb中的至少一种金属元素, Sc,Si,Sn,Ta,Tb,Ti,Tm,V,W,Y,Zn或Zr中的至少一种,并且使气化的原料与大气中的氮反应。 通过这种方法,制造超细复合颗粒或包含超细威士忌或柱状氮化铝颗粒和金属超细颗粒,金属与铝的金属间化合物和金属的氮化物陶瓷的混合物。 如此得到的超细颗粒例如可用作烧结材料和分散材料。

    Ultrafine particles of amorphous metal and method for production thereof
    4.
    发明授权
    Ultrafine particles of amorphous metal and method for production thereof 失效
    非晶态金属微粒及其制造方法

    公开(公告)号:US5578108A

    公开(公告)日:1996-11-26

    申请号:US313827

    申请日:1994-09-28

    摘要: Ultrafine amorphous metal particles which combine the properties of ultrafine particles with those of an amorphous alloy and a method for the production thereof are disclosed. The ultrafine amorphous metal particles are produced by a method which comprises discharging a plasma arc against a raw metal capable of forming a carbide in a reaction gas using an inert gas as a main component thereof and containing a hydrocarbon gas, and allowing the metal which has been consequently vaporized to contact the reaction gas which has been consequently converted into a plasma, thereby inducing formation of a solid solution of carbon atoms in the vaporized metal and quenching the solid solution in the reaction gas to confer an amorphous structure thereon. As the raw metal, at least one metal selected from the group consisting of Fe, Mo, Nb, Ta, Ti, Zr, Al, Si, and Cr is preferably used. By this method are obtained ultrafine amorphous metal particles which comprise the metal mentioned above, possess at least 50% by volume of an amorphous phase, and have particle diameters of not more than 500 nm.

    摘要翻译: 公开了将超细颗粒的性质与非晶合金的特性结合的超细无定形金属颗粒及其制造方法。 超细非晶态金属颗粒通过以下方法制造:使用惰性气体作为主要成分并含有烃气体的反应气体中能够形成碳化物的原料的等离子体电弧放电, 随后蒸发以接触已经转化成等离子体的反应气体,从而在蒸发的金属中引起碳原子的固溶体的形成,并淬灭反应气体中的固溶体以赋予其非晶结构。 作为原料金属,优选使用选自Fe,Mo,Nb,Ta,Ti,Zr,Al,Si和Cr中的至少一种金属。 通过该方法获得了包含上述金属的超细无定形金属颗粒,具有至少50体积%的非晶相,并且具有不大于500nm的粒径。

    High strength structural member and process for producing the same
    6.
    发明授权
    High strength structural member and process for producing the same 失效
    高强度结构件及其制造方法

    公开(公告)号:US5436080A

    公开(公告)日:1995-07-25

    申请号:US943324

    申请日:1992-09-10

    摘要: A structural member is produced using starting powder consisting of composite particulates each containing AlN grain within its surface covered by an Al layer of a single crystal structure, and Al alloy particulates of a single crystal structure, and then by sintering the Al layers of the composite particulates with the Al alloy particulates. The Al layers and the Al alloy particulates of the single crystal structure have no dislocation fault, crystal grain boundary. etc., produced therein, and for this reason, they have a low chemical activity. Therefore, the Al layers and the like have a characteristic that they are extremely difficult to oxidize. This ensures that the Al layers and the Al alloy particulates can be reliably sintered to achieve the densification of the resulting structural member.

    摘要翻译: 使用由在由Al单晶结构覆盖的表面内含有AlN晶粒的复合颗粒和单晶结构的Al合金微粒组成的起始粉末制造结构构件,然后通过烧结复合材料的Al层 颗粒与Al合金微粒。 单晶结构的Al层和Al合金微粒没有位错,晶界。 等等,因此,它们具有低的化学活性。 因此,Al层等具有极难氧化的特性。 这确保了Al层和Al合金颗粒可以可靠地烧结以实现所得结构构件的致密化。

    Hollow core body for signal transmission cable
    9.
    发明授权
    Hollow core body for signal transmission cable 有权
    空心芯体用于信号传输电缆

    公开(公告)号:US09318238B2

    公开(公告)日:2016-04-19

    申请号:US14345053

    申请日:2011-10-04

    摘要: A hollow core body for signal transmission cable comprises an inner conductor that employs a compressed bunched conductor formed by bunching and compressing plural strands such that a cross-section of the compressed bunched conductor is substantially circular, and a hollow insulating core that includes an inner annular member, rib members, an outer annular member, and hollow members. Accordingly, as almost no recesses are produced on the circumferential surface of the compressed bunched conductor, weakening of the mechanical strength due to presence of recesses on the circumferential surface of the inner conductor can be suppressed.

    摘要翻译: 用于信号传输电缆的中空芯体包括内导体,其使用通过聚束和压缩多股而形成的压缩聚束导体,使得压缩的聚束导体的横截面基本上为圆形,以及中空绝缘芯,其包括内环形 构件,肋构件,外环形构件和中空构件。 因此,由于在压缩的聚束导体的圆周表面上几乎没有产生凹陷,因此可以抑制由于在内导体的圆周表面上存在凹陷而导致的机械强度的弱化。